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PartsTable / COMPONENT / MS51953-1
MS51953-1 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include material: STEEL OVERALL, connection_type: THREADED EXTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, special_features: SUPPORTS GRUMMAN MODEL A10 AIRCRAFT, style_designator: CLOSE, surface_treatment: ZINC INSIDE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-921-3623, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MS51953-1
NSN: 4730-00-921-3623
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OVERALL
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
special_featuresSUPPORTS GRUMMAN MODEL A10 AIRCRAFT
style_designatorCLOSE
surface_treatmentZINC INSIDE
nominal_thread_size0.125 INCHES ALL ENDS IN
nominal_overall_length0.750 INCHES IN
end_item_identification2320-01-097-0248,2320-01-097-0249,2320-01-100-7672,2320-01-097-0260,2320-01-195-7641, HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS); 3990-01-444-5196 CEMENT MIXER
thread_series_designatorNPT ALL ENDS
nondefinitive_spec/std_data1 TYPE
NSN4730-00-921-3623
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51953-1 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE TREATMENT: ZINC INSIDE
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE
•
NOMINAL THREAD SIZE: 0.125 INCHES ALL ENDS IN
•
STYLE DESIGNATOR: CLOSE
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION2320-01-097-0248,2320-01-097-0249,2320-01-100-7672,2320-01-097-0260,2320-01-195-7641, HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS); 3990-01-444-5196 CEMENT MIXER
SURFACE TREATMENTZINC INSIDE
THREAD SERIES DESIGNATORNPT ALL ENDS
SURFACE TREATMENTZINC OUTSIDE
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
NONDEFINITIVE SPEC/STD DATA1 TYPE
NOMINAL THREAD SIZE0.125 INCHES ALL ENDS IN
STYLE DESIGNATORCLOSE
SPECIAL FEATURESSUPPORTS GRUMMAN MODEL A10 AIRCRAFT
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
MS51953-10Interchangeable
interchangeable cross-reference
interchangeable
120549Interchangeable
interchangeable cross-reference
interchangeable
2254-5 ITEM 99Interchangeable
interchangeable cross-reference
interchangeable
35114Interchangeable
interchangeable cross-reference
interchangeable
22545Interchangeable
interchangeable cross-reference
interchangeable
35114-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51953-1?
MS51953-1 is a RESISTOR,VARIABLE,NONWIRE WOUND,.
What parts can replace MS51953-1?
There are 20 known substitutes for MS51953-1: MS51953-10, 120549, 2254-5 ITEM 99 and 17 more. Substitute compatibility should be verified for your specific system.
Is MS51953-1 still available?
MS51953-1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026